| Patents for F16K 39 - Devices for relieving the pressure on the sealing faces (1,335) |
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| 01/08/2003 | CN2530114Y Throttle and check atmospheric valve |
| 01/08/2003 | CN1098428C Valve carriage for lift valve with limited sealing pressure |
| 12/24/2002 | CA2284741C Automatic back water valve system |
| 12/17/2002 | US6494229 Pilot-type two-port vacuum valve |
| 12/10/2002 | US6491059 Smooth exhaust valve |
| 12/10/2002 | US6491056 Sprinkler alarm test and drainage device for fire protection systems |
| 12/03/2002 | US6487870 Transition support for evaporative cooler |
| 11/26/2002 | US6484999 Plug valve internal pressure balancing |
| 11/21/2002 | WO2002093048A1 A servo control valve |
| 11/21/2002 | US20020170602 Pressure equalizing check valve |
| 11/20/2002 | EP1258663A2 Hydraulic valve system |
| 11/14/2002 | WO2002090806A1 High performance fluid control valve |
| 11/12/2002 | CA2167789C Automatic back water valve system |
| 11/07/2002 | US20020162591 High performance fluid control valve |
| 10/24/2002 | DE10114996A1 System for measuring pressure or temperature of fluid flowing through pipe or for filling or emptying it comprises connectors with axial bores connecting with lateral branches on pipe containing seals fitted with instruments |
| 10/09/2002 | CN2515492Y On-and-off structure improvement of indoor fire hydrant |
| 10/03/2002 | WO2002077545A1 High and low pressure gas selector valve of refrigerator |
| 09/24/2002 | US6454247 Anti-backdraft shutter assembly for an axial flow fan |
| 09/10/2002 | US6446660 Valve assembly with multiple mode actuators |
| 09/04/2002 | EP0805295B1 Instant-on vented tank valve with manual override and method of operation thereof |
| 09/03/2002 | US6443420 Wide-ranging valve |
| 08/29/2002 | US20020117220 Sanitary fitting |
| 08/28/2002 | EP1234917A1 Sanitary fitting |
| 08/22/2002 | WO2002064263A1 Valve for washing gun |
| 08/22/2002 | US20020112760 Valve assembly with multiple mode actuators |
| 08/08/2002 | WO2002061315A1 Sprinkler alarm test and drainage device for fire protection systems |
| 08/08/2002 | CA2433345A1 Sprinkler alarm test and drainage device for fire protection systems |
| 08/07/2002 | EP1229280A1 Fluid flow control valve with integrated pneumatic actuation |
| 08/07/2002 | CN2504447Y Double-beat drop valve |
| 07/04/2002 | US20020084076 Equalizing flapper for down hole safety valves |
| 07/04/2002 | US20020083982 Sprinkler alarm test and drainage device for fire protection systems |
| 06/26/2002 | CN2497121Y Non-differential-pressure on-off stop valve |
| 06/19/2002 | CN1354334A Flow-guiding type dual-hole vacuum valve |
| 06/06/2002 | US20020067073 Anti-locking brake system for a land vehicle |
| 05/28/2002 | US6394135 Balanced plug valve with contour wall |
| 05/02/2002 | US20020050740 Anti-locking brake system |
| 05/02/2002 | US20020050497 Shutoff device |
| 05/01/2002 | CN1347485A Shut-off device |
| 04/02/2002 | CA2153655C Blow-off cock for a steam vessel |
| 03/27/2002 | CN1341818A Stable exhaust valve |
| 03/27/2002 | CN1081766C Valve seal mechanism |
| 03/21/2002 | US20020033461 Pilot-type two-port vacuum valve |
| 03/21/2002 | DE10133990A1 Wegeventil Way valve |
| 03/14/2002 | WO2002021032A1 Directional-control valve |
| 03/07/2002 | US20020027211 Smooth exhaust valve |
| 03/06/2002 | EP1184617A2 High-, medium- and low-pressure reduction unit with a means for balancing the adjusting piston |
| 02/27/2002 | EP1181472A1 Shut-off device |
| 01/22/2002 | US6340029 Apparatus for opening/closing a valve and method thereof |
| 01/15/2002 | CA2181209C Instant-on valve construction for high pressure gas |
| 12/19/2001 | EP1163139A1 Anti-blocking braking system for a land vehicle |
| 12/19/2001 | EP1163138A1 Anti-locking braking system |
| 12/19/2001 | CN2466439Y Easy-to-open energy-saving automatic valve |
| 12/13/2001 | DE10027598A1 Ventil Valve |
| 12/05/2001 | EP1160493A1 Valve |
| 11/29/2001 | WO2001090622A1 Device for controlling a flow of fluid |
| 11/15/2001 | US20010040201 Transition support for evaporative cooler |
| 10/25/2001 | US20010032678 Expanded range multiple-stage metering valve |
| 10/17/2001 | EP0970330B1 Differential valve, specially a cabin air discharge valve in an aircraft, and method for regulating cabin pressure |
| 10/03/2001 | CN1315622A Valve with front and back sealing rings and regulation structure of internal axial pressure difference |
| 09/27/2001 | US20010023709 Pilot-type two-port vacuum valve |
| 09/26/2001 | EP1136735A2 Pilot-type two-port vacuum valve |
| 09/26/2001 | CN1314557A Guide type two hole vacuum valve |
| 09/19/2001 | EP0951621A4 Valve cartridge for lift valve having the closing pressure on the sealing limited |
| 09/19/2001 | CN2449009Y Electromalgnetic diaphram valve |
| 09/18/2001 | US6289932 Dual port soft start valve |
| 09/13/2001 | US20010021637 Anti-backdraft shutter assembly for an axial flow fan |
| 09/11/2001 | CA2161183C Automatic center cavity equalizing valve |
| 09/04/2001 | US6283152 Multiple sleeve valve assembly |
| 08/29/2001 | EP1128055A2 Expanded range multiple-stage metering valve |
| 08/16/2001 | US20010013369 Four-way selector valve |
| 08/16/2001 | EP1124082A1 Four-way selector valve |
| 08/15/2001 | CN1308197A Four-way converting valve |
| 08/15/2001 | CN1308196A Globe valve opening and closing method and device |
| 08/14/2001 | US6273136 Differential valve, specifically a cabin air discharge valve in an aircraft, and method for regulating cabin pressure |
| 07/18/2001 | EP1116908A1 Valve intended to be used in alumina production plants |
| 06/19/2001 | US6247497 Rotary channel-selector valve |
| 06/13/2001 | EP1105667A1 Valve slide |
| 06/12/2001 | US6244298 Channel-switching valve and method of controlling the same, and refrigerating cycle and method of controlling the same |
| 05/31/2001 | US20010001964 Balanced plug valve with contour wall |
| 05/22/2001 | US6234208 Shut-off device |
| 05/15/2001 | US6231028 Rotary channel-selector valve |
| 05/15/2001 | US6230743 Channel-switching valve and method of controlling the same, and refrigerating cycle and method of controlling the same |
| 05/15/2001 | US6230742 Poppet valve assembly apparatus having two simultaneously-seating heads |
| 04/26/2001 | WO2001029460A1 Directly operated shear seal valve |
| 04/24/2001 | CA2218030C Valve having pressure equalizing conduit |
| 04/17/2001 | US6216735 Rotary channel-selector valve |
| 04/04/2001 | CN1064118C 球阀 Ball |
| 03/21/2001 | CN2424332Y Self-pressuring stop valve |
| 03/20/2001 | US6202688 Instant-on vented tank valve with manual override and method of operation thereof |
| 03/15/2001 | WO2001001027A8 Valve intended to be used in alumina production plants |
| 03/15/2001 | DE19930724A1 Valve has housing and valve body forming three chambers and valve slide which forms liquid channels leading into them, width of top channel leading into middle chamber and channel leading into bottom chamber being widened when slide moves |
| 03/01/2001 | WO2000063596A8 Shut-off device |
| 02/28/2001 | EP1079160A1 Ball valve |
| 02/21/2001 | EP0950158B1 Valve assembly |
| 02/01/2001 | WO2001007356A1 Dispensing system for petrol-pumps |
| 01/31/2001 | EP1072556A1 Tap system for petrol pumps |
| 01/17/2001 | CN2415216Y Full-enclosed permanent-magnet stop valve |
| 01/17/2001 | CN2415215Y Overflow-preventing automatic water storage valve |
| 01/10/2001 | CN1279752A Valve assembly and airconditioning system including same |
| 01/04/2001 | WO2001001027A1 Valve intended to be used in alumina production plants |